Can blowing into the cartridges contacts (at the bottom) damage it?
Nintendo people have confirmed that by blowing directly into the bottom of NES cartridges you are in fact slowly damaging them. Moisture from your breath may actually lead to the corrison of the connectors on your game and NES system in the long run. It’s OK to do once in a great while, but don’t get into the habit of blowing if you want to preserve the contacts for as long as possible.
